/// <summary>
/// Runs the specified G'MIC command.
/// </summary>
/// <param name="command">The G'MIC command.</param>
/// <param name="customResourcePath">The custom resource path.</param>
/// <param name="hostName">The host application name.</param>
/// <param name="imageList">The image list.</param>
/// <param name="hasProgressEvent"><c>true</c> if the caller whats progress reports; otherwise, <c>false</c>.</param>
/// <param name="taskState">The task state.</param>
/// <exception cref="InvalidOperationException">This G'MIC instance is already running.</exception>
/// <exception cref="OperationCanceledException">The operation was canceled.</exception>
public void StartAsync(string command,
string customResourcePath,
string hostName,
GmicImageList imageList,
bool hasProgressEvent,
GmicRunnerTaskState <TGmicBitmap> taskState)
{
if (IsBusy)
{
ExceptionUtil.ThrowInvalidOperationException("This G'MIC instance is already running.");
}
progress = -1;
shouldAbort = 0;
GmicWorkerArgs args = new GmicWorkerArgs(command,
customResourcePath,
hostName,
imageList,
hasProgressEvent,
taskState);
Task task = Task.Run(() => GmicWorker(args), taskState?.CancellationToken ?? CancellationToken.None);
IsBusy = TaskIsRunning(task);
}
public GmicWorkerArgs(string command,
string customResourcePath,
string hostName,
GmicImageList imageList,
bool hasProgressEvent,
GmicRunnerTaskState <TGmicBitmap> taskState)
{
Command = command;
CustomResourcePath = customResourcePath;
HostName = hostName;
ImageList = imageList;
HasProgressEvent = hasProgressEvent;
if (taskState != null)
{
CanBeCanceled = taskState.CancellationToken.CanBeCanceled;
CancellationToken = taskState.CancellationToken;
Task = taskState.CompletionSource;
}
else
{
CanBeCanceled = true;
CancellationToken = CancellationToken.None;
Task = null;
}
}
